Page 151 - Basic Gas Chromatography

137 Abs. Error +2.4 +13 -12 —2.5 (6) (7) (8) (9) (10) example: (11) com- included the values. similarities These the in are is plotted. be must injection results the mixture is

Area% 20.0 36.0 16.0 28.0 100.0 for the contains also is between % area the course. included of interest curve volume Manual Better microliter. make to used calibration chromatographed. produced,

Factors % Weight 17.6 34.7 17.2 30.5 100.0 3.20 6.30 3.12 5.53 18.15 percent; which factors differences normalized upon of values, be may analyte calibration constant standards. method. one least is system A and area per

Response (0.64) (0.70) (0.78) (0.79) Total the get 17.6% = 8.4 factors. response the depend response and the of and a a this of at data followed. weight grams

With Corrected Area 3.20 6.30 3.12 5.53 18.15 x X X x to 100 X Table in response using are They (uncorrected) will errors example. graphically amounts measured, concentration, and samples the value inject a and is by made the to

Normalization Response Factor 0.64 0.70 0.78 0.79 — (5.0) Ethanol: (9.0) Hexane: (4.0) (7.0) normalized 3.20 Ethanol: 1815 given are using not by 8.4. the and actual individual typical performed Known are in all limits which made not procedure is equal factor,

Area Wt. Benzene: Ethylacetate is area values %) incurred Table of values the the a as system. areas vary for column and autosamplers is curve different standards
Analysis of Example Area Raw 5.0 9.0 4.0 7.0 25.0 corrected other (weight are that column % weight analysis between serve only Standard usually is data the the solutions to the unsatisfactory from slightly a pure from calibration

Quantitative 8.4 TABLE Compound Ethanol Hexane Benzene Ethylacetate Total each Now, This the and analysis pleted errors The in last the corrected given any For differences or calculations External method This of software chromatographed, standard the If introduced usually is obtained are calibration a If calculations, prepared absolute An

Analysis % Wt. TCD 0.45 0.59 0.68 0.68 0.69 0.70 0.71 0.71 0.74 0.78 0.585 0.78 0.79 0.84 0.81 0.81 0.68 0.74 0.79 0.67 0.58 0.64 0.60 0.53 0.82 Preston of Dietz by (5) and ethyl Table in area is

Quantitative [16]* %) Factors, Response permission publication benzene, given are Each 8.3.

and (Wt. TCD Relative by Science the original 100 hexane, obtained Table

Qualitative and FID FID? 1.03 1.03 1.02 0.92 0.96 0.97 1.03 0.95 1.01 1.00 0.98 0.89 0.93 0.98 0.96 1.00 2.04 1.64 2.53 _ 4.35 2.17 1.67 1.89 1.33 Inc. in given values. [2] ethanol, areas taken from

for the Chromatographic Industries, of those TCD of The
Values of reciprocals the mixture TCD. a factors factor:

Response Journal the Preston of are with consistent a consider with response response

Relative Paraffins Compounds from Division values are analyzed the its

8.3 Isopentane 2,3-Dimethylpentane 2,2,4-Trimethylpentane Ethylmethylketone Ethylacetate Compounds Reproduced A response they that example, being with by
TABLE Compound n-Paraffins Methane Ethane Propane Butane Pentane Hexane Octane Branched Unsaturates Ethylene Aromatics Benzene Toluene o-Xylene m-Xylene p-Xylene Oxygenated Acetone Diethylether Methanol Ethanol n-Propanol i-Propanol Aniline Publications, “FID so For along multiplied
136 Nitrogen * [16] acetate 8.4